176201011,,、、,[1]。,,。、、、、[2-4]。:,,。,、、。12211(1.,434023;2.,400042)、、,。KLML,3:、、。,。,,,。、、,KLML:,。,。;;;;;:TE249:A:1005-8907(2010)06-769-04ApplicationofmanagedpressuredrillingtechniqueincomplexvolcanicrockformationYangShijun1FanChaobin2PengGang2XiaoYunfeng1WangHaibo1(1.KeyLaboratoryofOilandGasDrillingandProductionEngineeringofHubeiProvince,YangtzeUniversity,Jingzhou434023,China;2.ChongqingDrillingCompany,SouthwestOilandGasCompany,SINOPEC,Chongqing400042,China)Abstract:Theexplorationanddevelopmentofvolcanicrockformationaregreatlyrestrictedbysomeobjectiveconditions,suchashardformation,strongabrasiveporperty,poordrillabilityandfracturedleakage.Threeproblems,i.e.frequentcirculationloss,lowROPandboreholewallinstability,areencounteredduringearlydrillingoperationinKLMLGasField.Becauseconventionaldrillingtechnologycannotsolvethesecomplexsimultaneousproblems,thedrillingtechnologyofoilandgasexplorationhasbeengreatlyrestricted.Accordingtotheporepressureandcollapsepressureofreservoir,abackpressurecanbeproducedduringmanagedpressuredrillingthroughtheuseofspecialwellheadcontrollingequipmentsandthewellheadbackpressurecanbechangedbyadjustingtheopeningdegreeofchokevalve,whichcanchangethepressureprofileofequivalentcirculatingdensityofdrillingfluidwithinwell.Ithasthetechnicaladvantagesofleakprotection,blowoutcontrol,improvingROPandpreventingboreholewallinstability.ThedrillingpracticeinKLMLGasFieldprovesthatthemethodiseffectiveinleakageprotectionandpreventingboreholewallinstabilityandROPhasbeengreatlyimprovedatthesametime.Withthecomplexconditions,themanagedpressuredrillingwillbecomeanindispensablemethod.Keywords:volcanicrockformation,complicatedformation,managedpressuredrilling,narrowdensitywindows,circulationloss,ROP.:,,,.[J].,2010,17(6):769-772.YangShijun,FanChaobin,PengGang,etal.Applicationofmanagedpressuredrillingtechniqueincomplexvolcanicrockformation[J].Fault-BlockOil&GasField,2010,17(6):769-772.FAULT-BLOCKOIL&GASFIELD7692010111AKLMLX,,,4496.7m(),3700m,。1993,70。,,。1.1,,。,、、,,。,、,,。X,,25216,8.6,,。,,,,。,、,,,,。1.2,,,。,(),。、、、、,,、,。1.3,:,;,。1.4,,,,。1.5,39.57~46.90MPa,1.16~1.33。,X、,、、,,、、、、,、、,。2KLML2.1,KLML、、(、、,)、、、,、,。、。2.2、、、、,,,,、、,。2.2.1[4-6],3:1),“”;2),“”;3)。2.2.21),,,,。2),770176。3),,、,;,,。4)、。:,,。2.2.3KLML1)、,、,,。,、、、,。2),、。、,。3)、,,、、。4),、、,。3X3.13.1.1,1.28~1.33,1.30,1.17~1.50,0.7~1.4MPa。,(1)。0.899~1.301g·cm-3,,。3.1.22,(2)。,1。1AA、B:A、B,A46.74MPa,B47.2MPa。2A、、1,、,1.20g·cm-3,、。3.1.3,0.7~1.4MPa。1.28~1.33,、,,、,。486047.1843.5646.56362045.5042.0143.20/m/MPa/MPa38.9140.96/MPa-5.39-5.45-3.62-1.81-3.79-3.85-0.621.89ABBB1.15g·cm-3/MPa1.20g·cm-3A-3.59-1.29-1.7971.203A1.25g·cm-3,:7712010113.23.2.1AA3。3A3.2.2A,1.20g·cm-3,1MPa,44.60MPa,1.26g·cm-3,45.50MPa,0.9MPa,,,,8~10m,。1.25g·cm-3,0.7MPa,,,1~3m。3850m,,1.28g·cm-3,,。3.2.3A3584.00m3969.00m,385.00m,0.87m·h-1。2.36m·h-1,40%。,;95.8h,2,20%,,,。,,,。41),,。2),,。3),。,,。4),。5),,。6),,,。[1],,,.[J].,2009,37(6):44-57.YangMinghe,XiaHongnan,JiangHongwei,etal.Optimizeddrillingtechniquestoincreasedrillingspeedinvolcanicformations[J].PetroleumDrillingTechniques,2009,37(6):44-57.[2],,,.[J].,2009,29(11):50-52.LiWeiting,HouShugang,LanKai,etal.Keytechnologiesandresearchprogressoftheadaptivemanagedpressuredrilling[J].NaturalGasIndustry,2009,29(11):50-52.[3],,,.MPDUBD[J].,2009,21(7):89-92.YuShuijie,LiGensheng,LuoHongbin,etal.ApplicationofMPDandUBDindrillingengineering[J].West-ChinaExplorationEngineering,2009,21(7):89-92.[4],,.MPD[J].,2007,30(2):62-66.YanXinxin,ChenYongming,YanXiuliang.MPDanditsapplicationtodrilling[J].NaturalGasExplorationandDevelopment,2007,30(2):62-66.[5]MedleyGeorgeH,ReynoldsPatrickBB.Distinctivevariationsofmanagedpressuredrillingexhibitapplicationpotential[J].WorldOil,2006,227(3):27-34.[6]HanneganDonM.Managedpressuredrillinginmarineenvironments:casestudies[A].SPE/IADC92600,2005.:2010-04-22;:2010-09-30。:,,1980,,。E-mail:yangshijun.cn@gmail.com。()/m/mm/mm/m/m600444.5339.76003617311.2244.5361724004865.78215.9772